Parameter Configuration Method And Apparatus

ABSTRACT

Embodiments of this application disclose a parameter configuration method and apparatus, relate to the field of communications technologies, and specifically provide a method and an apparatus for setting a resource unit bundling size, to help improve accuracy of a channel estimation result. The method may include: generating parameter configuration signaling, and sending the parameter configuration signaling. The parameter configuration signaling is used to indicate the resource unit bundling size. The resource unit bundling size may be applied to at least two inconsecutive time-frequency resources in frequency domain, and each time-frequency resource includes at least one consecutive resource unit in frequency domain; or may be applied to at least two inconsecutive time-frequency resources in time domain, and each time-frequency resource includes at least one consecutive resource unit in time domain.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application a continuation of International Application No.PCT/CN2018/082856, filed on Apr. 12, 2018, which claims priority toChinese Patent Application No. 201710299849.7, filed on Apr. 28, 2017.The disclosures of the aforementioned applications are herebyincorporated by reference in their entireties.

TECHNICAL FIELD

Embodiments of this application relate to the field of communicationstechnologies, and in particular, to a parameter configuration method andapparatus.

BACKGROUND

In a long term evolution (long term evolution, LTE) system, a physicalresource block (physical resource block, PRB) bundling size (bundlingsize) varies with system bandwidth, and a preset correspondence existsbetween the PRB bundling size and the system bandwidth.

There are various scenarios in a 5G communications system. Setting thePRB bundling size in the foregoing manner cannot meet a requirement ofthe 5G communications system. For example, if a time-frequency resourceused by a base station to schedule a terminal is inconsecutive infrequency domain or inconsecutive in time domain, setting the PRBbundling size in the foregoing manner may cause inaccuracy of a channelestimation result.

SUMMARY

This application provides a parameter configuration method andapparatus, and specifically provides a method and an apparatus forsetting a resource unit bundling size. The technical solution isapplicable to a scenario in which a base station uses inconsecutivetime-frequency resources in frequency domain or time domain to schedulea terminal, and helps improve accuracy of a channel estimation result inthis scenario.

According to a first aspect, this application provides a parameterconfiguration method and apparatus.

In a possible design, the method may include: generating parameterconfiguration signaling, and then sending the parameter configurationsignaling. The method may be performed by a base station. The parameterconfiguration signaling is used to indicate a resource unit bundlingsize. The resource unit bundling size may be applied to at least twoinconsecutive time-frequency resources in frequency domain, and eachtime-frequency resource includes at least one consecutive resource unitin frequency domain; or may be applied to at least two inconsecutivetime-frequency resources in time domain, and each time-frequencyresource includes at least one consecutive resource unit in time domain.The possible design provides a solution for flexibly setting theresource unit bundling size. The solution may be applied to a scenarioin which the base station uses inconsecutive time-frequency resources infrequency domain or time domain to schedule a terminal, to improveaccuracy of a channel estimation result in this scenario. It may beunderstood that the resource unit bundling size may be further appliedto processes such as data demodulation and interference measurement. Inthese processes, accuracy of calculation results may also be improved.

In a possible design, the parameter configuration signaling is DCI, MACsignaling, or the like, and the parameter configuration signaling isused to indicate an index of a resource unit bundling size. Before theparameter configuration signaling is generated, the method may furtherinclude: generating system configuration signaling, and then sending thesystem configuration signaling. The system configuration signalingincludes a plurality of information entries, and each information entryrecords one resource unit bundling size and an index of the resourceunit bundling size. The system configuration signaling may be RRCsignaling or the like. In this way, accuracy of calculation results indifferent operation processes can be improved while dynamic signalingoverheads can be reduced.

Correspondingly, this application further provides a parameterconfiguration apparatus, to implement the parameter configuration methodprovided in the first aspect. For example, the apparatus may be the basestation. The parameter configuration method provided in the first aspectmay be implemented by using software or hardware, or by using hardwareby executing corresponding software.

In a possible design, the apparatus may include a processor, a memory,and a communications interface. The processor is configured to supportthe apparatus in executing a corresponding function in the parameterconfiguration method provided in the first aspect. The memory isconfigured to be coupled to the processor, and stores a necessaryprogram instruction and necessary data of the apparatus. Thecommunications interface is configured to support the apparatus incommunicating with another network element. The communications interfacemay be a transceiver.

In a possible design, the apparatus may include a generation unit and asending unit. The generation unit is configured to generate theparameter configuration signaling. The sending unit is configured tosend the parameter configuration signaling.

In a possible design, the generation unit is further configured togenerate the system configuration signaling. The sending unit is furtherconfigured to send the system configuration signaling.

According to a second aspect, this application provides a parameterconfiguration method and apparatus.

In a possible design, the method may include: receiving parameterconfiguration signaling, and then determining a resource unit bundlingsize based on the parameter configuration signaling. The method may beperformed by a terminal. The parameter configuration signaling is usedto indicate the resource unit bundling size. The resource unit bundlingsize may be applied to at least two inconsecutive time-frequencyresources in frequency domain, and each time-frequency resource includesat least one consecutive resource unit in frequency domain; or may beapplied to at least two inconsecutive time-frequency resources in timedomain, and each time-frequency resource includes at least oneconsecutive resource unit in time domain.

In a possible design, the parameter configuration signaling is DCI, MACsignaling, or the like, and the parameter configuration signaling isused to indicate an index of a resource unit bundling size. Before theparameter configuration signaling is received, the method may furtherinclude receiving system configuration signaling. The systemconfiguration signaling includes a plurality of information entries, andeach information entry records one resource unit bundling size and anindex of the resource unit bundling size. The system configurationsignaling may be RRC signaling or the like.

Correspondingly, this application further provides a parameterconfiguration apparatus, to implement the parameter configuration methodprovided in the second aspect. For example, the apparatus may be theterminal. The parameter configuration method provided in the secondaspect may be implemented by using software or hardware, or by usinghardware by executing corresponding software.

In a possible design, the apparatus may include a processor, a memory,and a communications interface. The processor is configured to supportthe apparatus in executing a corresponding function in the parameterconfiguration method provided in the second aspect. The memory isconfigured to be coupled to the processor, and stores a necessaryprogram instruction and necessary data of the apparatus. Thecommunications interface is configured to support the apparatus incommunicating with another network element. The communications interfacemay be a transceiver.

In a possible design, the apparatus may include a receiving unit and adetermining unit. The receiving unit is configured to receive theparameter configuration signaling. The determining unit is configured todetermine the resource unit bundling size based on the parameterconfiguration signaling.

In a possible design, the receiving unit may be further configured toreceive the system configuration signaling.

Based on any one of the foregoing possible designs, the parameterconfiguration signaling is one of the following: RRC signaling, MACsignaling, and DCI. Certainly, specific implementation is not limitedthereto.

It may be understood that for related descriptions of the parameterconfiguration signaling and the system configuration signaling, refer tothe method provided in the second aspect. For explanation of relatedcontent in any possible design of the second aspect, refer to thecorresponding solution in the first aspect. Details are not describedherein again.

According to a third aspect, this application provides a parameterconfiguration method and apparatus.

In a possible design, the method may include: generating systemconfiguration signaling, and then sending the system configurationsignaling. The method may be performed by a base station. The systemconfiguration signaling includes a plurality of information entries, andeach information entry records one resource unit bundling size and anindex of the resource unit bundling size. The resource unit bundlingsize may be applied to at least two inconsecutive time-frequencyresources in frequency domain, and each time-frequency resource includesat least one consecutive resource unit in frequency domain; or may beapplied to at least two inconsecutive time-frequency resources in timedomain, and each time-frequency resource includes at least oneconsecutive resource unit in time domain. The possible design provides asolution for flexibly setting the resource unit bundling size. Thesolution may be applied to a scenario in which the base station usesinconsecutive time-frequency resources in frequency domain or timedomain to schedule a terminal, to improve accuracy of a channelestimation result in this scenario. It may be understood that theresource unit bundling size may be further applied to processes such asdata demodulation and interference measurement. In these processes,accuracy of calculation results may also be improved.

In a possible design, the method may further include: generatingparameter configuration signaling, where the parameter configurationsignaling is used to indicate an index of a target resource unitbundling size, and the target resource unit bundling size is included inthe plurality of information entries; and then sending the parameterconfiguration signaling. In this way, accuracy of calculation results indifferent operation processes can be improved while dynamic signalingoverheads can be reduced.

Correspondingly, this application further provides a parameterconfiguration apparatus, to implement the parameter configuration methodprovided in the third aspect. For example, the apparatus may be the basestation. The parameter configuration method provided in the third aspectmay be implemented by using software or hardware, or by using hardwareby executing corresponding software.

In a possible design, the apparatus may include a processor, a memory,and a communications interface. The processor is configured to supportthe apparatus in executing a corresponding function in the parameterconfiguration method provided in the third aspect. The memory isconfigured to be coupled to the processor, and stores a necessaryprogram instruction and necessary data of the apparatus. Thecommunications interface is configured to support the apparatus incommunicating with another network element. The communications interfacemay be a transceiver.

In a possible design, the apparatus may include a generation unit and asending unit. The generation unit is configured to generate the systemconfiguration signaling. The sending unit is configured to send thesystem configuration signaling.

In a possible design, the generation unit is further configured togenerate the parameter configuration signaling. The sending unit isfurther configured to send the parameter configuration signaling. Theparameter configuration signaling may be DCI or the like. Certainly,specific implementation is not limited thereto.

Based on any possible design of the third aspect, the systemconfiguration signaling may be RRC signaling, MAC signaling, or thelike. Certainly, specific implementation is not limited thereto.

For related descriptions of the system configuration signaling and theparameter configuration signaling, refer to the method provided in thethird aspect.

According to a fourth aspect, this application provides a parameterconfiguration method and apparatus.

In a possible design, the method may include: receiving systemconfiguration signaling, where the system configuration signalingincludes a plurality of information entries, and each information entryrecords one resource unit bundling size and an index of the resourceunit bundling size; and a resource unit bundling size is applied to atleast two inconsecutive time-frequency resources in frequency domain,and each time-frequency resource includes at least one consecutiveresource unit in frequency domain; or applied to at least twoinconsecutive time-frequency resources in time domain, and eachtime-frequency resource includes at least one consecutive resource unitin time domain; and then determining a target resource unit bundlingsize based on the plurality of information entries, where the targetresource unit bundling size is included in one of the plurality ofinformation entries. The method may be performed by a terminal.

In a possible design, the method may further include receiving parameterconfiguration signaling, and the parameter configuration signaling isused to indicate an index of the target resource unit bundling size. Inthis case, the determining a target resource unit bundling size based onthe plurality of information entries may include determining the targetresource unit bundling size based on the parameter configurationsignaling and the plurality of information entries.

Correspondingly, this application further provides a parameterconfiguration apparatus, to implement the parameter configuration methodprovided in the fourth aspect. For example, the apparatus may be theterminal. The parameter configuration method provided in the fourthaspect may be implemented by using software or hardware, or by usinghardware by executing corresponding software.

In a possible design, the apparatus may include a processor, a memory,and a communications interface. The processor is configured to supportthe apparatus in executing a corresponding function in the parameterconfiguration method provided in the fourth aspect. The memory isconfigured to be coupled to the processor, and stores a necessaryprogram instruction and necessary data of the apparatus. Thecommunications interface is configured to support the apparatus incommunicating with another network element. The communications interfacemay be a transceiver.

In a possible design, the apparatus may include a receiving unit and adetermining unit. The receiving unit is configured to receive theparameter configuration signaling. The determining unit is configured todetermine the target resource unit bundling size based on the parameterconfiguration signaling and the plurality of information entries.

In a possible design, the receiving unit may be further configured toreceive the parameter configuration signaling. In this case, thedetermining unit may be specifically configured to determine the targetresource unit bundling size based on the parameter configurationsignaling and the plurality of information entries. The parameterconfiguration signaling may be DCI or the like. Certainly, specificimplementation is not limited thereto.

Based on any possible design of the fourth aspect, the systemconfiguration signaling may be RRC signaling or the like. Certainly,specific implementation is not limited thereto.

It may be understood that for related descriptions of the systemconfiguration signaling and the parameter configuration signaling, referto the method provided in the fourth aspect. For explanation of relatedcontent in any possible design of the fourth aspect, refer to thecorresponding solution in the third aspect. Details are not describedherein again.

Based on any possible design provided in any one of the foregoingaspects, the resource unit bundling size is one of the following:

one resource unit;

N resource units, where N is a common divisor of total quantities ofresource units included in all of the at least two time-frequencyresources, or a total quantity of resource units included in a precodinggranularity, or a divisor of a total quantity of resource units includedin a precoding granularity, or a smaller one of a greatest commondivisor of total quantities of resource units included in all of the atleast two time-frequency resources and a total quantity of resourceunits included in a precoding granularity;

a divisor of a total quantity of RBs included in an RBG, where aresource unit is an RBG; and

a divisor of a total quantity of TIs included in a TIG, where a resourceunit is a TIG.

This application further provides a computer storage medium. Thecomputer storage medium stores a computer program instruction. When theprogram instruction runs on a computer, the computer performs the methodin any one of the foregoing aspects.

This application further provides a computer program product. When thecomputer program product runs on a computer, the computer performs themethod in any one of the foregoing aspects.

It may be understood that any apparatus, any computer storage medium, orany computer program product provided above is configured to perform acorresponding method provided above. Therefore, for beneficial effectsthat can be achieved by any apparatus, any computer storage medium, orany computer program product, refer to beneficial effects in acorresponding solution in the following embodiments. Details are notdescribed herein again.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic distribution diagram of a resource unit accordingto this application;

FIG. 2 is another schematic distribution diagram of a resource unitaccording to this application;

FIG. 3 is a schematic diagram of a resource unit according to thisapplication;

FIG. 4 is a schematic distribution diagram of a scheduling resourceaccording to this application;

FIG. 5 is a schematic diagram of a system architecture to which atechnical solution is applicable according to this application;

FIG. 6 is a schematic structural diagram of a base station according tothis application;

FIG. 7 is a schematic structural diagram of a terminal according to thisapplication;

FIG. 8a is another schematic distribution diagram of a schedulingresource according to this application;

FIG. 8b is another schematic distribution diagram of a schedulingresource according to this application;

FIG. 9 is a schematic interaction diagram of a parameter configurationmethod according to this application;

FIG. 10 is another schematic interaction diagram of a parameterconfiguration method according to this application;

FIG. 11 is a schematic structural diagram of a parameter configurationapparatus according to this application;

FIG. 12 is another schematic structural diagram of a parameterconfiguration apparatus according to this application; and

FIG. 13 is another schematic structural diagram of a parameterconfiguration apparatus according to this application.

DESCRIPTION OF EMBODIMENTS

PRB bundling is a technology used to improve channel estimationperformance. In a technical solution of the PRB bundling, sizes ofconsecutive PRBs preprocessed in a same manner (including beamforming,precoding, and the like) are used through agreement, and the sizes aregenerally greater than 1. When a terminal performs joint channelestimation based on a plurality of PRBs, extrapolation calculation ofchannel estimation may be reduced. In the channel estimation, a channelestimation deviation obtained through extrapolation calculation isrelatively large. Therefore, accuracy of the channel estimation can beimproved by reducing extrapolation calculation (changing theextrapolation calculation to interpolation calculation).

From a perspective of the channel estimation, a larger PRB bundling sizeleads to higher channel estimation accuracy. However, when the PRBbundling size increases to a specific value, an accuracy gain of thechannel estimation is converged. Therefore, a limited quantity of valuesare defined for the PRB bundling size, and the PRB bundling size doesnot need to increase unlimitedly. An accuracy gain of the channelestimation brought by increasing the PRB bundling size is also relatedto a channel environment. For example, a flatter frequency domainchannel leads to a smaller channel estimation extrapolation loss. Inthis scenario, the accuracy gain of the channel estimation brought byincreasing the PRB bundling size is limited. In addition, a larger PRBbundling size leads to higher channel estimation complexity. Therefore,from a perspective of terminal implementation complexity, a limitedquantity of values are defined for the PRB bundling size.

In different scenarios, for example, the different scenario may bedistinguished by using a channel environment, in comprehensiveconsideration of a channel estimation gain, terminal implementationcomplexity, a terminal scheduling status, and the like, optimal PRBbundling sizes are different. Therefore, the PRB bundling size needs tobe configurable.

Based on this, this application provides a parameter configurationmethod and apparatus. A basic principle of the method and the apparatusis that a resource unit bundling size is set in a signaling indicationmanner. The resource unit bundling size may be specifically applied tothe following scenarios: Scenario 1: The resource unit bundling size isapplied to at least two inconsecutive time-frequency resources infrequency domain, and each time-frequency resource includes at least oneconsecutive resource unit in frequency domain. Scenario 2: The resourceunit bundling size is applied to at least two inconsecutivetime-frequency resources in time domain, and each time-frequencyresource includes at least one consecutive resource unit in time domain.The at least two time-frequency resources may be time-frequencyresources used when a base station schedules a terminal. It may beunderstood that use scenarios of this application are described in theforegoing from a perspective of whether a resource unit is consecutivein frequency domain or time domain. It is not difficult to understandthat time-frequency resources that are inconsecutive in frequency domainand consecutive in time domain may be described by using Scenario 1, andtime-frequency resources that are inconsecutive in time domain andconsecutive in frequency domain may be described by using Scenario 2.Time-frequency resources that are inconsecutive in frequency domain andtime domain may be described by using Scenario 1 or Scenario 2.Therefore, the technical solution provided in this application isapplicable to a scenario in which time-frequency resources areinconsecutive in at least one of frequency domain and time domain.

For ease of understanding, the following briefly describes related termsused in this application.

(1) Resource Unit (Resource Unit)

The resource unit is similar to an RB, an RB pair (RB pair), an RB group(RB group, RBG), or a time interval group (time interval group, TIG) inan LTE system, and the resource unit is used in some embodiments of thisapplication. The resource unit may be used as a basic unit for resourceallocation for scheduling a terminal, or may be used to describe anarrangement manner of a plurality of reference signals, or the like. OneRB pair refers to two adjacent RBs in time domain. The RBG is atime-frequency resource including one TI in time domain and one or moreconsecutive RBs in frequency domain. The TIG is a time-frequencyresource including one RB in frequency domain and one or moreconsecutive TIs in time domain. It may be understood that concepts ofthe PRB and the RB are the same in this specification.

The resource unit may include a plurality of consecutive subcarriers infrequency domain and a fixed quantity (for example, 1) of time intervals(time interval, TI) in time domain, as shown in FIG. 1, or may includeone or more consecutive TIs in time domain and a plurality ofconsecutive subcarriers in frequency domain, as shown in FIG. 2. In FIG.1 and FIG. 2, each small box represents one resource unit. In differentscheduling processes, sizes of resource units may be the same ordifferent. The TI herein may be a transmission time interval(transmission time interval, TTI) or a symbol-level short TTI in the LTEsystem, a short TTI with a large subcarrier spacing in a high frequencysystem, a slot (slot) or a mini-slot (mini-slot) in a 5G system, or thelike. This is not limited in this application.

Optionally, one resource unit may include but is not limited to any oneof the following: one or more RBs, one or more RB pairs, one or moreRBGs, or the like, and in addition, may be a half RB or the like. Inaddition, the resource unit may be another time-frequency resource, andthis is not limited in this application. The following uses an examplefor description in which one resource unit is one RB. As shown in FIG.3, one RB may include 12 consecutive subcarriers (numbered 0 to 11) infrequency domain and 7 symbols (numbered 0 to 6) in time domain. Atime-frequency resource including one subcarrier in frequency domain andone symbol in time domain is one resource element (resource element,RE). It may be understood that the “symbol” in this application mayinclude but is not limited to any one of the following: an orthogonalfrequency division multiplexing (orthogonal frequency divisionmultiplexing, OFDM) symbol, a universal filtered multi-carrier(universal filtered multi-carrier, UFMC) signal, a filter bankmulticarrier (filter bank multi-carrier, FBMC) symbol, a generalizedfrequency division multiplexing (generalized frequency divisionmultiplexing, GFDM) symbol, or the like.

(2) Resource Unit Bundling Size

Resource unit bundling may be understood as follows: One or moreresource units are used as a whole, and an operation is performed basedon the whole. In the following, the whole is marked as a resource unitset. For example, the terminal performs joint channel estimation basedon a demodulation reference signal (demodulation reference signal, DMRS)carried in the resource unit set. For another example, in a datademodulation process, the terminal determines an equalizationcoefficient based on the resource unit set. For still another example,the terminal performs interference measurement based on the DMRS carriedin the resource unit set. Other examples are not enumerated. Thefollowing uses an example for description in which resource unitbundling is applied to a channel estimation process.

The resource unit bundling size may be understood as a size of theresource unit set, and may be specifically marked by using a totalquantity of resource units included in the resource unit set. Inaddition, the resource unit bundling size may also be marked by usingother information, and this is not limited in this application. Itshould be noted that in different use processes (for example, processesof channel estimation, data demodulation, or interference measurement),quantities of resource units included in the resource unit set may bethe same or different. In other words, in the different use processes,resource unit bundling sizes may be the same or different.

That one resource unit is one RB is used as an example. As shown in FIG.4, it is assumed that a total system bandwidth is 10 RBs (respectivelymarked as an RB 1 to an RB 10), and the base station schedules theterminal on an RB 5 and an RB 6 (as shown by small shadow boxesrepresenting RBs in FIG. 4), the resource unit bundling size may be 2RBs, and the terminal may perform joint channel estimation by usingDMRSs carried on the two RBs. For example, it is assumed that DMRSscarried on the RB 5 and the RB 6 are shown in FIG. 4. Specifically,DMRSs are carried on a second symbol and a third symbol in time domainof each RB and six REs on a zeroth subcarrier, a fourth subcarrier, andan eighth subcarrier in frequency domain of each RB. Therefore, theterminal may perform joint channel estimation by using DMRSs carried ona total of 12 REs (small shadow boxes representing REs in FIG. 4) on thefifth RB and the sixth RB. For example, if the channel estimation isimplemented in an interpolation manner, the interpolation may beperformed on a plurality of RBs. For example, the terminal may performinterpolation by using a DMRS on the second symbol and the eighthsubcarrier on the fifth RB and a DMRS on the second symbol and thezeroth subcarrier on the sixth RB.

It may be understood that, when the terminal performs the channelestimation based on a time-frequency resource after resource unitbundling, more known reference signals are used, so that accuracy of acalculation result can be improved.

Generally, one terminal may have one resource unit bundling size, anddifferent terminals may have a same resource unit bundling size ordifferent resource unit bundling sizes. At different moments, oneterminal may have different resource unit bundling sizes.

(3) Scheduling Resource

The scheduling resource is a time-frequency resource used when a basestation schedules a terminal.

(4) Other Terms

The term “a plurality of” in this specification means two or more thantwo.

The term “and/or” in this specification describes only an associationrelationship for describing associated objects and represents that threerelationships may exist. For example, A and/or B may represent thefollowing three cases: Only A exists, both A and B exist, and only Bexists. In addition, the character “/” in this specification generallyindicates an “or” relationship between the associated objects.

The technical solutions provided in this application may be applied tovarious communications systems, for example, current 2G 3G and 4Gcommunications systems, and a future evolved network such as a 5Gcommunications system, for example, an LTE system, a cellular systemrelated to the 3rd generation partnership project (3rd generationpartnership project, 3GPP), and other similar communications systems,and in particular, may be applied to a 5G NR system. It should be notedthat the 5G standard may include scenarios such as machine-to-machine(machine-to-machine, M2M), D2M, macro-micro communication, enhancedmobile broadband (enhanced mobile broadband, eMBB), ultra-reliable andlow latency communications (ultra-reliable and low latencycommunications, uRLLC), and massive internet of things communications(massive machine type communication, mMTC). These scenarios may includebut are not limited to a communication scenario between terminals, acommunication scenario between base stations, a communication scenariobetween a base station and a terminal, and the like. The technicalsolutions provided in this application may also be applied to scenariossuch as communication between terminals or communication between gNBs inthe 5G communications system.

The technical solution provided in this application may be applied to asystem architecture shown in FIG. 5. The system architecture may includea base station 100 and one or more terminals 200 connected to the basestation 100.

The base station 100 may be a device that can communicate with theterminal 200. The base station 100 may be a relay station, an accesspoint, or the like. The base station 100 may be a base transceiverstation (base transceiver station, BTS) in a global system for mobilecommunications (global system for mobile communications, GSM) or a codedivision multiple access (code division multiple access, CDMA) network,or may be an NB (NodeB) in wideband code division multiple access(wideband code division multiple access, WCDMA), or may be an eNB or aneNodeB (evolved NodeB) in LTE. Alternatively, the base station 100 maybe a radio controller in a cloud radio access network (cloud radioaccess network, CRAN) scenario. The base station 100 may also be anetwork device in a future 5G network or a network device in a futureevolved PLMN network, or may be a wearable device, an in-vehicle device,or the like.

The terminal 200 may be user equipment (user equipment, UE), an accessterminal, a UE unit, a UE station, a mobile station, a mobile console, aremote station, a remote terminal, a mobile device, a UE terminal, aterminal, a wireless communications device, a UE agent, a UE apparatus,or the like. The access terminal may be a cellular phone, a cordlessphone, a session initiation protocol (session initiation protocol, SIP)phone, a wireless local loop (wireless local loop, WLL) station, apersonal digital assistant (personal digital assistant, PDA), a handhelddevice or a computing device having a wireless communication function,or another processing device connected to a wireless modem, anin-vehicle device, a wearable device, a terminal in a future 5G network,or a terminal in a future evolved PLMN network, or the like.

In an example, the base station 100 may be implemented by using astructure shown in FIG. 6. FIG. 6 shows a universal hardwarearchitecture of a base station. The base station shown in FIG. 6 mayinclude a building baseband unit (building baseband unit, BBU) and aremote radio unit (remote radio unit, RRU). The RRU is connected to anantenna system (namely, an antenna). The BBU and RRU may be separatelyused as required. It should be noted that in a specific implementationprocess, the base station 100 may further use another universal hardwarearchitecture, and is not limited only to the universal hardwarearchitecture shown in FIG. 6.

In an example, the terminal 200 may be implemented by using a structureshown in FIG. 7. That the terminal 200 is a mobile phone is used as anexample. FIG. 7 shows a universal hardware architecture of the mobilephone for description. The mobile phone shown in FIG. 7 may includecomponents such as a radio frequency (radio Frequency, RF) circuit 110,a memory 120, another input device 130, a display 140, a sensor 150, anaudio circuit 160, an I/O subsystem 170, a processor 180, and a powersupply 190. A person skilled in the art may understand that a structureof the mobile phone shown in FIG. 7 does not constitute any limitationon the mobile phone, and may include more or fewer components than thoseshown in the figure, or some components may be combined, or somecomponents may be split, or different component arrangements may beused. A person skilled in the art may understand that the display 140 isa user interface (user Interface, UI), and the display 140 may include adisplay panel 141 and a touch panel 142. In addition, the mobile phonemay include more or fewer components than those shown in the figure.Although not shown, the mobile phone may further include a functionalmodule or a component such as a camera or a Bluetooth module. Detailsare not described herein.

Further, the processor 180 is separately connected to the RF circuit110, the memory 120, the audio circuit 160, the I/O subsystem 170, andthe power supply 190. The I/O subsystem 170 is separately connected tothe another input device 130, the display 140, and the sensor 150. TheRF circuit 110 may be configured to receive and send a signal ininformation sending and receiving processes or a call process, andparticularly, after receiving downlink information of the base station,send the downlink information to the processor 180 for processing. Thememory 120 may be configured to store a software program and a module.By running the software program and the module stored in the memory 120,the processor 180 executes various function applications and dataprocessing of the mobile phone. The another input device 130 may beconfigured to receive input digit or character information, and generatea key signal input related to user setting and function control of themobile phone. The display 140 may be configured to display informationentered by a user or information provided to a user, and various menusof the mobile phone, and may further receive a user input. The sensor150 may be an optical sensor, a motion sensor, or another sensor. Theaudio circuit 160 may provide an audio interface between the user andthe mobile phone. The I/O subsystem 170 is configured to control anexternal input/output device, and the external device may includeanother input device controller, a sensor controller, and a displaycontroller. The processor 180 is a control center of the mobile phone200, uses various interfaces and lines to connect all parts of theentire mobile phone, and executes various functions and processes dataof the mobile phone 200 by running or executing software programs and/ormodules stored in the memory 120 and invoking data stored in the memory120, to perform overall monitoring on the mobile phone. The power supply190 (for example, a battery) is configured to supply power to theforegoing components. Optionally, the power supply may be logicallyconnected to the processor 180 by using a power management system, toimplement functions such as charging, discharging, and power consumptionmanagement by using the power management system.

The following describes parameter configuration methods provided in thisapplication.

It should be noted that a resource unit bundling size provided in thisapplication may be applied to at least two inconsecutive time-frequencyresources in frequency domain, and each time-frequency resource includesat least one consecutive resource unit in frequency domain, as shown inFIG. 8a . The resource unit bundling size may also be applied to atleast two inconsecutive time-frequency resources in time domain, andeach time-frequency resource includes at least one consecutive resourceunit in time domain, as shown in FIG. 8b . In addition, the resourceunit bundling size provided in this application may be further appliedto a combination of the foregoing two scenarios. A specificimplementation of a combined scenario is not limited in thisspecification.

An example in which a resource unit is one RB is described in FIG. 8aand FIG. 8b . Specific implementation is not limited thereto. In FIG. 8aand FIG. 8b , each small shadow box represents a resource unit used whena base station schedules a terminal, and each small blank box representsa resource unit other than the resource unit used when the base stationinvokes the terminal. In FIG. 8a and FIG. 8b , an RB 1 and an RB 2 maybe used as one time-frequency resource, and the time-frequency resourceincludes two resource units, and an RB 6 to an RB 10 may be used asanother time-frequency resource, and the time-frequency resourceincludes five resource units.

FIG. 9 is a schematic interaction diagram of a parameter configurationmethod according to this application. The method may include thefollowing steps S101 to S103.

S101. A base station generates parameter configuration signaling, wherethe parameter configuration signaling is used to indicate a resourceunit bundling size.

S102. The base station sends the parameter configuration signaling.

S103. The terminal receives the parameter configuration signaling, anddetermines the resource unit bundling size based on the parameterconfiguration signaling.

In an optional embodiment, the parameter configuration signaling may beradio resource control (radio resource control, RRC). This embodiment isapplicable to a scenario in which a resource unit bundling size for theterminal changes infrequently. Dynamic signaling overheads may bereduced in this embodiment.

In another optional embodiment, the parameter configuration signalingmay be media access control (media access control, MAC) signaling. Thisembodiment is applicable to a scenario in which a resource unit bundlingsize for the terminal changes infrequently. Dynamic signaling overheadsmay be reduced in this embodiment.

In still another optional embodiment, the parameter configurationsignaling may be downlink control information (downlink controlinformation, DCI). This embodiment is applicable to a scenario in whicha resource unit bundling size for the terminal changes frequently. Inthis embodiment, the DCI is used to set the resource unit bundling size,so that a channel change can be tracked in real time, thereby improvingaccuracy of a channel estimation result.

In this application, a condition for determining whether a resource unitbundling size changes frequently is not limited. The parameterconfiguration signaling in any one of the foregoing embodiments may be apiece of signaling in the prior art, so that signaling overheads arereduced, or may be a new piece of signaling provided in thisapplication. Any one of the foregoing embodiments may be considered as atechnical solution for directly setting a resource unit bundling size.In any one of the foregoing embodiments, the parameter configurationsignaling may include a resource unit bundling size, an index of aresource unit bundling size, or other information that may be used toindicate a resource unit bundling size, and this is not limited in thisapplication.

In an optional embodiment, the parameter configuration signaling mayinclude a resource unit bundling size. It may be understood that if acorrespondence between a resource unit bundling size and an index of theresource unit bundling size is agreed between the base station and theterminal by using a protocol, the parameter configuration signaling mayinclude the index of the resource unit bundling size, so that theterminal may determine the resource unit bundling size based on theindex of the resource unit bundling size. A specific implementation ofthe index of the resource unit bundling size is not limited in thisapplication. For example, assuming that the resource unit bundling sizeis one resource unit, two resource units, four resource units, and fiveresource units, a 2-bit binary number (“00”, “01”, “10”, and “11”) maybe used as indexes of the four resource unit bundling sizes. Certainly,specific implementation is not limited thereto.

According to the parameter configuration method provided in thisembodiment, the base station may indicate a resource unit bundling sizeto the terminal by using the signaling, so that the resource unitbundling size can be flexibly set. In this way, in a scenario in whichthe base station schedules the terminal on an inconsecutivetime-frequency resource in frequency domain or time domain, the accuracyof the channel estimation result is improved.

FIG. 10 is a schematic interaction diagram of a parameter configurationmethod according to this application. The method may include thefollowing steps S201 to S206.

S201. A base station generates system configuration signaling, where thesystem configuration signaling includes a plurality of informationentries, and each information entry records one resource unit bundlingsize and an index of the resource unit bundling size.

The system configuration signaling may include RRC signaling and thelike. The system configuration signaling may be a piece of signaling inthe prior art, so that signaling overheads are reduced, or may be a newpiece of signaling provided in this application. A quantity of pieces ofRRC signaling is not limited in this application. For example, theplurality of information entries may be included in one piece of RRCsignaling, or the plurality of information entries may be included in aplurality of pieces of RRC signaling.

Optionally, the resource unit bundling sizes included in the systemconfiguration signaling may be some or all of resource unit bundlingsizes supported by a system. For example, it is assumed that the systemconfiguration signaling can support four resource unit bundling sizes intotal: one resource unit, two resource units, four resource units, andfive resource units. There are two possible resource unit bundling sizesin total whose system bandwidth is less than a threshold (for example,20 megabytes): one resource unit and two resource units. In this case, a1-bit binary number (“0” and “1”) may be used as indexes of the tworesource unit bundling sizes. For example, “0” is used as an index ofthe resource unit bundling size of one resource unit, and “1” is used asan index of the resource unit bundling size of two resource units. Inother words, in this application, the base station may select, based ona criterion, for example, but not limited to the system bandwidth, oneor more resource unit bundling sizes from the resource unit bundlingsizes that can be supported by the system, and then indicate, to theterminal by using the RRC signaling, a correspondence between eachresource unit bundling size in the one or more resource unit bundlingsizes and an index of the resource unit bundling size. In this way,signaling overheads may be reduced.

S202. The base station sends the system configuration signaling.

S203. A terminal receives the system configuration signaling, and storesthe plurality of information entries included in the systemconfiguration signaling.

It may be understood that S201 to S203 are processes in which the basestation indicates, to the terminal, a correspondence between eachresource unit bundling size and an index of the resource unit bundlingsize.

S204. The base station generates parameter configuration signaling,where the parameter configuration signaling is used to indicate an indexof a resource unit bundling size. The parameter configuration signalingmay be DCI, MAC signaling, or the like, and is used to indicate theindex of the resource unit bundling size. The index may be an index of aresource unit bundling size included in one of the plurality ofinformation entries in S101.

S205. The base station sends the parameter configuration signaling.

The base station may generate and send parameter configuration signalingto the terminal when a resource unit bundling size for the terminalchanges. For example, the base station may generate and send parameterconfiguration signaling to the terminal when a scheduling resource ofthe terminal changes.

S206. The terminal receives the parameter configuration signaling, anddetermines, based on the index of the resource unit bundling sizeindicated by the parameter configuration signaling and the storedplurality of information entries, a resource unit bundling sizecorresponding to the index of the resource unit bundling size indicatedby the parameter configuration signaling.

The terminal may query, from the stored plurality of informationentries, the index of the resource unit bundling size indicated by theparameter configuration signaling, and then determine, a resource unitbundling size included in an information entry including the index ofthe resource unit bundling size, as a resource unit bundling sizecorresponding to the index of the resource unit bundling size indicatedby the parameter configuration signaling. Based on the foregoing examplein S101, it is assumed that when the index of the resource unit bundlingsize included in the parameter configuration signaling is “0”, theresource unit bundling size determined by the terminal is one resourceunit.

In this embodiment, the base station may indicate the correspondencebetween the resource unit bundling size and the index of the resourceunit bundling size to the terminal by using the RRC signaling, and thenindicate an index of a target resource unit bundling size by using theDCI or the MAC signaling, so that the terminal determines the targetresource unit bundling size. In this way, accuracy of calculationresults in different operation processes can be improved while dynamicsignaling overheads are reduced.

According to the parameter configuration method provided in any one ofthe foregoing embodiments, the resource unit bundling size is set in asignaling indication manner. In this way, resource unit bundling sizescan be flexibly set in different scenarios. In particular, the method isapplicable to a scenario in which a scheduling resource isinconsecutive.

The technical solution provided in this application may be understood asfollows: When determining, based on a resource allocation status, that aresource allocated to the terminal is consecutive, the base station mayset the resource unit bundling size by using the technical solutionprovided in the prior art. When determining, based on a resourceallocation status, that a resource allocated to the terminal isinconsecutive (including inconsecutive in frequency domain and/orinconsecutive in time domain), the base station sets a backoff value ofthe resource unit bundling size in a signaling indication manner. Thebackoff value may be any one of resource unit bundling sizes provided inthe following.

In the foregoing description, the base station notifies the terminal ofthe resource unit bundling size by using the signaling. In actualimplementation, optionally, the base station may notify the terminal ofthe resource unit bundling size in the following manner. The resourceunit bundling size provided in this application is set to a defaultvalue, and when determining, based on the resource allocation status,that the resource is inconsecutive (including inconsecutive in frequencydomain and/or inconsecutive in time domain), the terminal determines thedefault value as valid, or when determining, based on the resourceallocation status, that the resource is consecutive, the terminalignores the default value.

According to any parameter configuration method provided above, theresource unit bundling size may include at least one of the following.

(1) One resource unit. In this implementation, complexity of anoperation on a terminal side may be reduced.

(2) N resource units. N may be determined in any one of the followingmanners:

Manner 1: N may be a common divisor of total quantities of resourceunits included in all of at least two time-frequency resources.Optionally, N may be a greatest common divisor of total quantities ofresource units included in all of at least two time-frequency resources.A larger resource unit bundling size can improve accuracy of a channelestimation result.

For example, as shown in FIG. 8a , RBs used by the base station toschedule the terminal are distributed in frequency domain. In this case,because a greatest common divisor of the total quantities (that is, 2and 5) of the resource units included in the two time-frequencyresources is 1, N=1. In other words, the terminal may independentlyperform channel estimation by using a DMRS carried on each RB. In thisexample, the terminal independently performs the channel estimation byusing a DMRS carried on one time-frequency resource.

For another example, as shown in FIG. 8b , RBs used by the base stationto schedule the terminal are distributed in time domain. In this case,because a greatest common divisor of the total quantities (2 and 5) ofthe resource units included in the two time-frequency resources is 1,N=1. In other words, the terminal may independently perform channelestimation by using a DMRS carried on each RB. In this example, theterminal independently performs the channel estimation by using a DMRScarried on one time-frequency resource.

Manner 2: N may be a total quantity of resource units included in aprecoding granularity (precoding granularity, PRG).

For example, that the resource unit is an RB is used as an example. Ifthe total quantity of resource units included in the PRG is 4 (that is,a PRG size is 4 RBs), N may be 4. To be specific, the resource unitbundling size (namely, an RB bundling size) may be four resource units(namely, 4 RBs).

Manner 3: N may be a divisor of a total quantity of resource unitsincluded in a precoding granularity.

For example, that the resource unit is an RB is used as an example. If aPRG size is 4 RBs, N may be 1, 2, or 4. To be specific, the resourceunit bundling size (namely, an RB bundling size) may be one resourceunit, two resource units, or four resource units.

Manner 4: N may be a smaller one of a greatest common divisor of totalquantities of resource units included in all of the at least twotime-frequency resources and a total quantity of resource units includedin a precoding granularity.

For example, FIG. 8a is used as an example, and the greatest commondivisor of the total quantities of the resource units included in alltime-frequency resources is 1. If the total quantity of resource unitsincluded in the precoding granularity is 4, N may be 1.

(3) A divisor of a total quantity of RBs included in an RBG. A resourceunit is an RBG.

For example, if a total quantity of RBs included in one RBG is 4, thatis, an RBG size is 4 RBs, N may be 1, 2, or 4. It may be understoodthat, if the resource unit is a TIG, N may be a divisor of a totalquantity of TIs included in the TIG.

The foregoing describes a technical solution for determining theresource unit bundling size when the resource is inconsecutive. In thiscase, the base station may further set the precoding granularity size inthe following manner: (1) The precoding granularity size is one resourceunit. (2) The precoding granularity size is N resource units. N may be acommon divisor of total quantities of resource units included in all ofat least two time-frequency resources. Optionally, N may be a greatestcommon divisor of total quantities of resource units included in all ofat least two time-frequency resources. (3) The precoding granularitysize is a divisor of a total quantity of RBs included in an RBG. Aresource unit is an RBG. For specific examples of these manners, referto the foregoing description. Details are not described herein again.

The foregoing mainly describes the solutions provided in the embodimentsof this application from a perspective of interaction between networkelements. It may be understood that to implement the foregoingfunctions, the network elements, for example, the base station and theterminal, include a corresponding hardware structure and/or acorresponding software module for performing the functions. A person ofordinary skill in the art should easily be aware that, in combinationwith the examples described in the embodiments disclosed in thisspecification, units and algorithms steps may be implemented by hardwareor a combination of hardware and computer software in this application.Whether a function is performed by hardware or hardware driven bycomputer software depends on particular applications and designconstraints of the technical solutions. A person skilled in the art mayuse different methods to implement the described functions for eachparticular application, but it should not be considered that theimplementation goes beyond the scope of this application.

In the embodiments of this application, the base station or the terminalmay be divided into functional modules based on the foregoing methodexamples. For example, functional modules may be obtained throughdivision based on corresponding functions, or two or more functions maybe integrated into one processing module. The integrated module may beimplemented in a form of hardware, or may be implemented in a form of asoftware functional module. It should be noted that, in this embodimentof this application, module division is an example, and is merely alogical function division. In actual implementation, another divisionmanner may be used. That each functional module is obtained throughdivision based on each corresponding function is used as an example fordescription below.

FIG. 11 shows a schematic structural diagram of a parameterconfiguration apparatus 9. The apparatus 9 may be the foregoing basestation 100. The apparatus 9 may include a generation unit 901 and asending unit 902.

In a possible example, the generation unit 901 may be configured toperform S101 in FIG. 9, and/or be configured to support another processof the technology described in this specification. The sending unit 902may be configured to perform an action performed by the base station inS102 in FIG. 9, and/or may be configured to support another process ofthe technology described in this specification. All related content ofthe steps in the foregoing method embodiments can be cited in functiondescriptions of corresponding functional modules, and details are notdescribed herein again.

In a possible example, the generation unit 901 may be configured toperform actions performed by the base station in S201 and S204 in FIG.10, and/or be configured to support another process of the technologydescribed in this specification. The sending unit 902 may be configuredto perform S202 and S205 in FIG. 10, and/or be configured to supportanother process of the technology described in this specification. Allrelated content of the steps in the foregoing method embodiments can becited in function descriptions of corresponding functional modules, anddetails are not described herein again.

FIG. 12 shows a schematic structural diagram of a parameterconfiguration apparatus 10. The apparatus 10 may be the foregoingterminal 200. The apparatus 10 may include a receiving unit 1001 and adetermining unit 1002.

In a possible example, the receiving unit 1001 may be configured toperform an action performed by the terminal in S102 in FIG. 9, and/or beconfigured to support another process of the technology described inthis specification. The determining unit 1002 may be configured toperform S103 in FIG. 9, and/or be configured to support another processof the technology described in this specification. All related contentof the steps in the foregoing method embodiments can be cited infunction descriptions of corresponding functional modules, and detailsare not described herein again.

In another possible example, the receiving unit 1001 may be configuredto perform an action performed by the terminal in S202 in FIG. 10,and/or be configured to support another process of the technologydescribed in this specification. The determining unit 1002 may beconfigured to perform S206 in FIG. 10, and/or be configured to supportanother process of the technology described in this specification. Inaddition, the apparatus may further include a storage unit 1003,configured to perform S203, and/or configured to support another processof the technology described in this specification. All related contentof the steps in the foregoing method embodiments can be cited infunction descriptions of corresponding functional modules, and detailsare not described herein again.

In this embodiment of this application, the parameter configurationapparatus 9 and the parameter configuration apparatus 10 are presentedin a form of dividing each functional module according to acorresponding function, or the parameter configuration apparatus 9 andthe parameter configuration apparatus 10 are presented in a form ofdividing each functional module (or unit) in an integrated manner. The“module” herein may be an application-specific integrated circuit(application-specific integrated circuit, ASIC), a processor thatexecutes one or more software or firmware programs and a memory, anintegrated logic circuit, and/or another component that can provide theforegoing functions. The processor and the memory may be integratedtogether, or may be independent of each other.

In a simple embodiment, a person skilled in the art may figure out thateither of the parameter configuration apparatus 9 and the parameterconfiguration apparatus 10 is implemented by using a structure shown inFIG. 13.

As shown in FIG. 13, a parameter configuration apparatus 11 may includea memory 1101, a processor 1102, and a communications interface 1103.The memory 1101 is configured to store a computer executableinstruction. When the parameter configuration apparatus 11 runs, theprocessor 1102 executes the computer executable instruction stored inthe memory 1101, so that the parameter configuration apparatus 11performs the parameter configuration method provided in the embodimentsof this application. For a specific parameter configuration method,refer to the foregoing descriptions and related descriptions in theaccompanying drawings. Details are not described herein again. Thecommunications interface 1103 may be a transceiver.

In an example, the sending unit 902 may correspond to the communicationsinterface 1103. The generation unit 901 may be built in or independentof the memory 1101 of the parameter configuration apparatus 11 in ahardware form.

In another example, the receiving unit 1001 may correspond to thecommunications interface 1103. The determining unit 1002 may be built inor independent of the memory 1101 of the parameter configurationapparatus 11 in a hardware form.

Optionally, the parameter configuration apparatus 11 may be afield-programmable gate array (field-programmable gate array, FPGA), anapplication-specific integrated circuit (application-specific integratedcircuit, ASIC), a system on chip (system on chip, SoC), or a centralprocessing unit (central processing unit, CPU), a network processor(network processor, NP), a digital signal processor (digital signalprocessor, DSP), a micro control unit (micro control unit, MCU), or aprogrammable logic device (programmable logic device, PLD) or anotherintegrated chip may be used.

An embodiment of this application further provides a storage medium, andthe storage medium may include the memory 1101.

Because a parameter configuration apparatus provided in this embodimentof this application may be configured to perform the foregoing parameterconfiguration method, for a technical effect that can be achieved by theparameter configuration apparatus, refer to the foregoing methodembodiments. Details are not described again in this embodiment of thisapplication.

All or some of the foregoing embodiments may be implemented by usingsoftware, hardware, firmware, or any combination thereof. When asoftware program is used to implement the embodiments, the embodimentsmay be implemented completely or partially in a form of a computerprogram product. The computer program product includes one or morecomputer instructions. When the computer program instruction is loadedand executed on a computer, the procedure or functions according to theembodiments of this application are all or partially generated. Thecomputer may be a general-purpose computer, a dedicated computer, acomputer network, or other programmable apparatuses. The computerinstruction may be stored in a computer-readable storage medium or maybe transmitted from a computer-readable storage medium to anothercomputer-readable storage medium. For example, the computer instructionsmay be transmitted from a website, computer, server, or data center toanother website, computer, server, or data center in a wired (forexample, a coaxial cable, an optical fiber, or a digital subscriber line(digital subscriber line, DSL)) or wireless (for example, infrared,radio, and microwave) manner. The computer-readable storage medium maybe any usable medium accessible by a computer, or a data storage device,for example, a server or a data center, integrating one or more usablemedia. The usable medium may be a magnetic medium (for example, a floppydisk, a hard disk, or a magnetic tape), an optical medium (for example,a DVD), a semiconductor medium (for example, a solid-state drive(solid-state disk, SSD)), or the like.

Although this application is described with reference to theembodiments, in a process of implementing this application that claimsprotection, a person skilled in the art may understand and implementanother variation of the disclosed embodiments by viewing theaccompanying drawings, disclosed content, and the appended claims. Inthe claims, “comprising” (comprising) does not exclude another componentor another step, and “a” or “one” does not exclude a case of multiple. Asingle processor or another unit may implement several functionsenumerated in the claims. Some measures are recorded in dependent claimsthat are different from each other, but this does not mean that thesemeasures cannot be combined to produce a better effect.

Although this application is described with reference to specificfeatures and the embodiments thereof, obviously, various modificationsand combinations may be made to them without departing from the spiritand scope of this application. Correspondingly, the specification andaccompanying drawings are merely example description of this applicationdefined by the appended claims, and are considered as any of or allmodifications, variations, combinations, or equivalents that cover thescope of this application. Obviously, a person skilled in the art canmake various modifications and variations to this application withoutdeparting from the spirit and scope of this application. Thisapplication is intended to cover these modifications and variations ofthis application provided that they fall within the scope of protectiondefined by the following claims and their equivalent technologies.

1. A parameter configuration method, comprising: receiving parameterconfiguration signaling, wherein the parameter configuration signalingindicates a resource unit bundling size, the resource unit bundling sizeis: applied to at least two inconsecutive time-frequency resources infrequency domain, and each of the at least two inconsecutivetime-frequency resources in frequency domain comprises at least oneconsecutive resource unit in frequency domain; or applied to at leasttwo inconsecutive time-frequency resources in time domain, and each ofthe at least two inconsecutive time-frequency resources in time domaincomprises at least one consecutive resource unit in time domain; anddetermining the resource unit bundling size based on the parameterconfiguration signaling.
 2. The method according to claim 1, wherein theresource unit bundling size is one of the following: one resource unit;N resource units, wherein N is a common divisor of total quantities ofresource units comprised in all of the at least two time-frequencyresources, or a total quantity of resource units comprised in aprecoding granularity, or a divisor of a total quantity of resourceunits comprised in a precoding granularity, or a smaller one of agreatest common divisor of total quantities of resource units comprisedin all of the at least two time-frequency resources and a total quantityof resource units comprised in a precoding granularity; or a divisor ofa total quantity of resource blocks (RBs) comprised in a resource blockgroup (RBG), wherein a resource unit is an RBG.
 3. The method accordingto claim 1, wherein the parameter configuration signaling is one of thefollowing: radio resource control (RRC) signaling, media access control(MAC) signaling, or downlink control information (DCI).
 4. The methodaccording to claim 1, wherein the parameter configuration signaling isDCI or MAC signaling, and the parameter configuration signalingcomprises information indicating an index of the resource unit bundlingsize, the index of the resource unit bundling size is used to determinethe resource unit bundling size, and before the receiving parameterconfiguration signaling, the method further comprises: receiving systemconfiguration signaling, wherein the system configuration signaling isRRC signaling, the system configuration signaling comprises a pluralityof information entries, and each information entry in the plurality ofinformation entries records one resource unit bundling size and theindex of the resource unit bundling size.
 5. A parameter configurationapparatus, comprising: a processor, configured to generate parameterconfiguration signaling, wherein the parameter configuration signalingindicates a resource unit bundling size, the resource unit bundling sizeis: applied to at least two inconsecutive time-frequency resources infrequency domain, and each of the at least two inconsecutivetime-frequency resources in frequency domain comprises at least oneconsecutive resource unit in frequency domain; or applied to at leasttwo inconsecutive time-frequency resources in time domain, and each ofthe at least two inconsecutive time-frequency resources in time domaincomprises at least one consecutive resource unit in time domain; and atransceiver, configured to send the parameter configuration signaling.6. The apparatus according to claim 5, wherein the resource unitbundling size is one of the following: one resource unit; N resourceunits, wherein N is a common divisor of total quantities of resourceunits comprised in all of the at least two time-frequency resources, ora total quantity of resource units comprised in a precoding granularity,or a divisor of a total quantity of resource units comprised in aprecoding granularity, or a smaller one of a greatest common divisor oftotal quantities of resource units comprised in all of the at least twotime-frequency resources and a total quantity of resource unitscomprised in a precoding granularity; or a divisor of a total quantityof resource blocks (RBs) comprised in a resource block group (RBG),wherein a resource unit is an RBG.
 7. The apparatus according to claim5, wherein the parameter configuration signaling is one of thefollowing: radio resource control (RRC) signaling, media access control(MAC) signaling, or downlink control information (DCI).
 8. The apparatusaccording to claim 5, wherein the parameter configuration signaling isDCI or MAC signaling, and the parameter configuration signalingcomprises information indicating an index of the resource unit bundlingsize, the index of the resource unit bundling size is used to determinethe resource unit bundling size; the processor is further configured togenerate system configuration signaling, wherein the systemconfiguration signaling is RRC signaling, the system configurationsignaling comprises a plurality of information entries, and eachinformation entry in the plurality of information entries records oneresource unit bundling size and the index of the resource unit bundlingsize; and the transceiver is further configured to send the systemconfiguration signaling.
 9. A parameter configuration apparatus,comprising: a transceiver, configured to receive parameter configurationsignaling, wherein the parameter configuration signaling indicates aresource unit bundling size, the resource unit bundling size is: appliedto at least two inconsecutive time-frequency resources in frequencydomain, and each of the at least two inconsecutive time-frequencyresources in frequency domain comprises at least one consecutiveresource unit in frequency domain; or applied to at least twoinconsecutive time-frequency resources in time domain, and each of theat least two inconsecutive time-frequency resources in time domaincomprises at least one consecutive resource unit in time domain; and aprocessor, configured to determine the resource unit bundling size basedon the parameter configuration signaling.
 10. The apparatus according toclaim 9, wherein the resource unit bundling size is one of thefollowing: one resource unit; N resource units, wherein N is a commondivisor of total quantities of resource units comprised in all of the atleast two time-frequency resources, or a total quantity of resourceunits comprised in a precoding granularity, or a divisor of a totalquantity of resource units comprised in a precoding granularity, or asmaller one of a greatest common divisor of total quantities of resourceunits comprised in all of the at least two time-frequency resources anda total quantity of resource units comprised in a precoding granularity;or a divisor of a total quantity of resource blocks (RBs) comprised in aresource block group (RBG), wherein a resource unit is an RBG.
 11. Theapparatus according to claim 9, wherein the parameter configurationsignaling is one of the following: radio resource control (RRC)signaling, media access control (MAC) signaling, or downlink controlinformation (DCI).
 12. The apparatus according to claim 9, wherein theparameter configuration signaling is DCI or MAC signaling, and theparameter configuration signaling comprises information indicating anindex of the resource unit bundling size, the index of the resource unitbundling size is used to determine the resource unit bundling size; andthe transceiver is further configured to receive system configurationsignaling, wherein the system configuration signaling is RRC signaling,the system configuration signaling comprises a plurality of informationentries, and each information entry in the plurality of informationentries records one resource unit bundling size and the index of theresource unit bundling size.
 13. A non-transitory computer-readablestorage medium, storing a computer program, wherein when executing theprogram, a computer implements: receiving parameter configurationsignaling, wherein the parameter configuration signaling indicates aresource unit bundling size, the resource unit bundling size is: appliedto at least two inconsecutive time-frequency resources in frequencydomain, and each of the at least two inconsecutive time-frequencyresources in frequency domain comprises at least one consecutiveresource unit in frequency domain; or applied to at least twoinconsecutive time-frequency resources in time domain, and each of theat least two inconsecutive time-frequency resources in time domaincomprises at least one consecutive resource unit in time domain; anddetermining the resource unit bundling size based on the parameterconfiguration signaling.
 14. The non-transitory computer-readablestorage medium according to claim 13, wherein the resource unit bundlingsize is one of the following: one resource unit; N resource units,wherein N is a common divisor of total quantities of resource unitscomprised in all of the at least two time-frequency resources, or atotal quantity of resource units comprised in a precoding granularity,or a divisor of a total quantity of resource units comprised in aprecoding granularity, or a smaller one of a greatest common divisor oftotal quantities of resource units comprised in all of the at least twotime-frequency resources and a total quantity of resource unitscomprised in a precoding granularity; or a divisor of a total quantityof resource blocks (RBs) comprised in a resource block group (RBG),wherein a resource unit is an RBG.
 15. The non-transitorycomputer-readable storage medium according to claim 13, wherein theparameter configuration signaling is one of the following: radioresource control (RRC) signaling, media access control (MAC) signaling,or downlink control information (DCI).
 16. The non-transitorycomputer-readable storage medium according to claim 13, wherein theparameter configuration signaling is DCI or MAC signaling, and theparameter configuration signaling comprises information indicating anindex of the resource unit bundling size, the index of the resource unitbundling size is used to determine the resource unit bundling size, andbefore the receiving parameter configuration signaling, the computerfurther implements: receiving system configuration signaling, whereinthe system configuration signaling is RRC signaling, the systemconfiguration signaling comprises a plurality of information entries,and each information entry in the plurality of information entriesrecords one resource unit bundling size and the index of the resourceunit bundling size.